@book{varadarajan1974lie,
  title={{Lie Groups, Lie Algebras, and Their Representations}},
  author={Varadarajan, V.S.},
  year={1974},
  publisher={Prentice-Hall}
}
@book{bourbaki1989elements,
  title={{Elements of mathematics. General topology. Chapters 1-4}},
  author={Bourbaki, N.},
  year={1989},
  publisher={Springer},
  note={See Chapter I, paragraph 6, subparagraph 10 ``Germs at a Point''}
}

